/*
 * The Unified Mapping Platform (JUMP) is an extensible, interactive GUI 
 * for visualizing and manipulating spatial features with geometry and attributes.
 *
 * JUMP is Copyright (C) 2003 Vivid Solutions
 *
 * This program implements extensions to JUMP and is
 * Copyright (C) Stefan Steiniger.
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 * 
 * For more information, contact:
 * Stefan Steiniger
 * perriger@gmx.de
 */
/*****************************************************
 * created:  		16.05.2005
 * last modified:  	
 * 
 * description:
 *    selects all items of the actual layer
 *    and informs about the number of selected items
 * 
 *****************************************************/

package org.openjump.core.ui.plugin.edit;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;

import com.vividsolutions.jump.I18N;
import com.vividsolutions.jump.feature.Feature;
import com.vividsolutions.jump.feature.FeatureCollection;
import com.vividsolutions.jump.workbench.WorkbenchContext;
import com.vividsolutions.jump.workbench.model.Layer;
import com.vividsolutions.jump.workbench.plugin.AbstractPlugIn;
import com.vividsolutions.jump.workbench.plugin.EnableCheckFactory;
import com.vividsolutions.jump.workbench.plugin.MultiEnableCheck;
import com.vividsolutions.jump.workbench.plugin.PlugInContext;
import com.vividsolutions.jump.workbench.ui.MenuNames;


/**
 * Selects all items of the actual layer and informs about the number
 * of selected items
 * 
 * @author sstein
 *
 */
public class SelectAllLayerItemsPlugIn extends AbstractPlugIn{
         
    public void initialize(PlugInContext context) throws Exception {
	
		    context.getFeatureInstaller().addPopupMenuItem(context.getWorkbenchContext().getWorkbench()
                    .getFrame().getLayerNamePopupMenu(), 
					this,                    
                    I18N.get("org.openjump.core.ui.plugin.edit.SelectAllLayerItemsPlugIn.select-current-layer-items"),
					false, 
					null,
                    createEnableCheck(context.getWorkbenchContext()));
		    
		    context.getFeatureInstaller().addMainMenuItemWithJava14Fix(this,
		        new String[]
				{MenuNames.EDIT, MenuNames.SELECTION},
				I18N.get("org.openjump.core.ui.plugin.edit.SelectAllLayerItemsPlugIn.select-layer-items"), 
				false, 
				null, 
				createEnableCheck(context.getWorkbenchContext())); //enable check
    }
    
    public static MultiEnableCheck createEnableCheck(WorkbenchContext workbenchContext) {
        EnableCheckFactory checkFactory = new EnableCheckFactory(workbenchContext);        
        return new MultiEnableCheck()
                        .add(checkFactory.createAtLeastNLayersMustBeSelectedCheck(1));   
    }
        
	public boolean execute(PlugInContext context) throws Exception{
		
		int count = 0;	    
		Layer[] selectedLayers = context.getLayerNamePanel().getSelectedLayers();
		for (int i = 0; i < selectedLayers.length; i++) {
			Layer actualLayer = selectedLayers[i];
			if (actualLayer.isVisible()){
				FeatureCollection fc = context.getSelectedLayer(i).getFeatureCollectionWrapper().getWrappee();
				Collection features = new ArrayList();
	
				for (Iterator iter = fc.iterator(); iter.hasNext();) {
					Feature element = (Feature) iter.next();
					features.add(element);
					count++;
				}
				context.getLayerViewPanel().getSelectionManager().getFeatureSelection().selectItems(actualLayer, features);	
			}
		}
	    final Collection myf = context.getLayerViewPanel().getSelectionManager().getFeaturesWithSelectedItems();
		context.getWorkbenchFrame().setTimeMessage(
				I18N.get("org.openjump.core.ui.plugin.edit.SelectAllLayerItemsPlugIn.layer-items") + ": " + 
				count + 
				", " +
				I18N.get("org.openjump.core.ui.plugin.edit.SelectAllLayerItemsPlugIn.selected-items") +
				": " +
				myf.size());
		System.gc();
	    return true;
	}

     
}
